1st time LED, welcome 2024 !

Hello everyone, this is my first run here and my third run in my young life, knowing that I am a beginner with a little less than a year of growing (the first seed in my life was a Purple Punch :D). To begin with, I am in a cellar with a 100x100x180h tent with carbon filter + 205CFM extractor connected to a controller (Mars Hydro). I started with an old reflector and old MH/HPS bulbs recovered from a friend who had already been used a few years ago, but I recently invested in an LED (F.O.G BLACK SERIES 320W with UV/IR bar 15W). This is my first session with an LED. Then, as for the substrate, I stuck with the Biobizz lightmix that I had left for growth. I am thinking of repotting before flowering in Plagron Batmix which I still have in stock. For fertilizer, I have half of the bottles from the Biobizz selection left (Root-juice, Bio-grow, Bio-Bloom, Top-max, Acti-vera and Calmag) combined with very hard tap water (ph 7.8 ). I draw water 24/48 hours in advance from my tap into bottles and I do not regulate the pH or EC. To finish with the best for the end, the genetics, I launched 3 seeds of Forbidden Fruit from Growbarato and 3 seeds of Orange Velvet Underground RBX from Ethos genetics this Saturday March 2 at 2 p.m. I started with 24 hours in a glass of water, then I put them in the ground the next day a little over 24 hours later. Before talking about the launch of this session, I also wanted to clarify one point; I don't yet live where I farm, so I'm quite restricted and I can only go there a maximum of once a day around 4-6 p.m. depending on the day and time I finish my work. Having a little more time on the weekend, I try to do all the long tasks and maintenance there during that time. I started the 18/6 cycle on Sunday March 5 at 4 p.m. under the F.O.G 320w dimmed to 25%. Climate was 16° the first night (12° in my cellar), quickly adjusted the next day to around 21-22° for arround 65%RH. DLI set to 15 for germination (LED at approximately 60cm). I directly connected the UV/IR bar set like the LED in 18/6 cycle. The cycle starts at 4 p.m. and ends at 10 a.m. I saw the first seed come out this Tuesday, and Thursday all the young seedlings were out!🙏